STONE 130BCD 1X Chainring Spider Adapter – 7mm Offset, CNC 7075 Aluminum, Fits SRAM, ROTOR, Easton & XXE GP3 Cranks
The STONE 130BCD 1X chainring spider adapter converts compatible cranksets into a clean, reliable single-chainring drivetrain. Machined from 7075 aluminum with a 7mm inner offset, it helps center the chainline for smooth 1X performance.
This spider adapter is designed for 1X single chainring conversion only. It allows compatible cranks to run a 130BCD single chainring, making it a practical upgrade for riders simplifying their drivetrain.
- Designed for 1X single chainring setups
- Not compatible with double chainring / 2X setups
Compatibility
Before ordering, confirm both your crank interface and your chainring type. This adapter works with the following:
- 130BCD single chainrings only
- Compatible 130BCD narrow-wide chainrings for 1X drivetrains
- Compatible 130BCD fixed gear / fixie chainrings
- Not for double chainring setups
- Not for 2X drivetrain setups
Supported Crank Interfaces
Multiple spider versions are available. Please choose the correct model according to your crank interface.
- SRAM 3-bolt direct mount cranks
- SRAM 8-bolt cranks
- ROTOR cranks, including KAPIC, ALDHU, and VEGAST
- Easton EC90 cranks
- XXE GP3 cranksets
Chainring Compatibility
- 130BCD chainring spider adapter
- For 130BCD single chainrings only
- Supports compatible 130BCD 1X narrow-wide chainrings
- Supports compatible 130BCD fixed gear chainrings
Note: This spider is for 1X single chainring use only. It does not support double chainring installation.
Product Specifications
| Item | Detail |
|---|---|
| Brand | STONE |
| Product Type | Chainring Spider / Spider Adapter |
| BCD | 130BCD |
| Drivetrain Setup | 1X single chainring only |
| Material | Aluminum 7075 |
| Manufacturing | Full CNC machining |
| Thickness | 8mm |
| Offset | 7mm inner offset |
| Function | Helps center the chainline when converting to a 1X system |
Version Weight Reference
- Hollow style: about 60g
- Aero style: about 90g
Product Advantages
1. High-Strength 7075 Aluminum
Made from high-strength 7075 aluminum alloy, offering excellent stiffness, durability, and reliable power transfer for 1X drivetrain setups.
2. Full CNC Machining
Fully CNC machined for precise fitment, stable chainring positioning, and reliable long-term riding performance.
3. Optimized for 1X Chainline
The 7mm inner offset helps center the chainline when converting compatible cranksets to a 1X single chainring drivetrain.
4. Multiple Interface Options
Available for SRAM 3-bolt / 8-bolt / ROTOR / Easton EC90 / XXE GP3 crank interfaces. Please select the correct model before ordering.
Package Content
- 130BCD Spider Adapter × 1
Important Notice
- This spider adapter is designed for 1X single chainring setups only.
- It is not compatible with double chainring or 2X drivetrain setups.
- If you need a 2X double chainring spider, please search for the 2X version on this website.
- Please confirm your crank interface before ordering.
- Please choose the correct spider model according to your crank type.



